Hystrichosphaeridium lucidum
From dinoflaj3
"lucidum" Deunff, 1959, p.25–26, pl.9, figs.80,82–83,85–89. Holotype: Deunff, 1959, pl.9, fig.82. NOW Micrhystridium (Appendix A). Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Solisphaeridium (Appendix A), fourthly (and now) Micrhystridium (Appendix A). Age: Ordovician (Caradoc).
Parent: Hystrichosphaeridium